英语名词性从句知识归纳
高中英语语法总结名词性从句
名词性从句 在句子中起名词作用的句子叫名词性从句(Noun Clauses ）。
名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
根据从句在句子中的功能分根据从句的性质分 定语从句形容词性从句主语从句名词性从句 宾语从句表语从句同位语从句状语从句副词性从句 第一节 知识点讲解一．【主语从句】顾名思义，主语从句在句子中作主语。
有时本身出现在主语的位置上，也有时出于句子结构的考虑退到句子的尾部，前面用形式主语it 代替。
从句作主语时，谓语动词一般为单数形式。
如:What I saw was beyond any verbal description.That his hair was turning grey worried him a bit.Why the company denied the contract is still unknown.When and where the government will build a city square is under discussion.It is pretty annoying that a small part of the machine is missing.It remains to be seen whether the new novel will be well received.Tips: 主语从句的that 绝对不能省去。
因为句子是不能做主语的，故用that 引导。
若去掉则没有了主语，而宾语从句的that 可省。
主语从句：That he is right is known to all of us.宾语从句：We all know (that) he is right.1. It 作形式主语和it 引导强调句的比较为了防止句子头重脚轻，通常把形式主语it 放在主语位置，真正主语搁置于句末It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。
高中英语语法：名词性从句知识汇总
高中英语语法：名词性从句知识汇总在复合句中具有名词的性质的作主语、表语、同位语、宾语的从句叫名词性从句。
因此，我们把主语从句、表语从句、同位语从句和宾语从句这四种从句统称为名词性从句。
当名词性从句要采用陈述句语序。
由一个含疑问意义的连词引起时，必须将该连词放在名词性从句的开头，且该从句语序不能倒装。
一、引导名词性从句的关联词引导名词性从句的关联词大致相同，它们分别是：连词：that, whether, if；关系代词：who, what, which , whom, whose, whatever, whoever, whomever, whichever；关系副词：when, where, how, why, however, whenever, wherever。
引导从句时一般不用逗号和主句分开。
连词that在从句中不作成分，不含疑问意义；而wh-连词在从句中作成分，且含有疑问意义；或what/where从句相当于一个名词后加一个定语从句。
It worried her a bit that her hair was turning grey.她的头发在变白令她有点担忧。
（that在从句中只起引导词作用，不作成分）What caused the accident is still a complete mystery.事故发生的原因仍然是个不解之谜。
（What在从句中作主语）2、that与whether引导名词性从句的区别。
（1）动词doubt表示“怀疑、不知道”解时，肯定句接whether引导的宾语从句；否定句don’t doubt和疑问句Do you doubt要接that引导的从句。
I don’t doubt that he will come soon.我不怀疑他不久会来。
（此处不用whether）Can you doubt that he will win?你怀疑他会赢吗？（此处不用whether）比较：doubt表示“不信”解时，表示强烈的不相信时，在陈述句中可接that从句。
名词性从句英语语法知识点汇总
名词性从句英语语法知识点汇总名词性从句是在句子中起名词作用的句子。
名词性从句的功能相当于名词词组，它在复合句中能担任主语、宾语、表语、同位语、介词宾语等。
下面就是小编给大家带来的名词性从句英语语法知识点汇总，希望大家喜欢！1 引导名词性从句的连接词引导名词性从句的连接词可分为三类：连接词：that,whether,if 不充当从句的任何成分)连接代词：what, whatever, who, whoever, whom,whose, which.连接副词：when, where, how, why不可省略的连词：1. 介词后的连词2. 引导主语从句和同位语从句的连词不可省略。
That she was chosen made us very happy.We heard the news that our team had won.比较：whether与if 均为"是否"的意思。
但在下列情况下，whether 不能被if 取代：1. whether引导主语从句并在句首2. 引导表语从句3. whether从句作介词宾语4. 从句后有"or not"Whether he will come is not clear.大部分连接词引导的主语从句都可以置于句末，用it充当形式主语。
It is not important who will go.It is still unknown which team will win the match.2 名词性that-从句1)由从属连词that引导的从句叫做名词性that-从句。
That只起连接主句和从句的作用，在从句中不担任任何成分，本身也没有词义。
名词性that-从句在句中能充当主语、宾语、表语、同位语和形容词宾语，例如：主语：That he is still alive is sheer luck. 他还活着全靠运气。
【英语知识点】名词性从句语法总结归纳
【英语知识点】名词性从句语法总结归纳名词性从句是在句子中起名词作用的句子。
名词性从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
接下来分享名词性从句的语法，供参考。
1.主语从句通常由下列词引导：①从属连词that、whether等。
②连接代词what、who、which、whatever、whoever、whom、whichever等。
③连接副词how、when、where、why等。
that在句中无词义，只起连接作用;连接代词和连接副词都在句中既保留自己的疑问含义、又起连接作用，连接代词主要作主语，宾语，表语，定语等，连接副词在从句中作状语。
注：whom、who指人，what指物，whatever、whoever表示泛指意义。
2.有时为避免句子头重脚轻，常用形式主语it代替主语从句作形式主语放于句首，而把主语从句置于句末。
主语从句后的谓语动词一般用单数形式。
常用句型如下：(1)It be+名词+that从句：It's a great pity that they didn't getmarried.他们没能结婚，真是令人惋惜。
(2)It be+形容词+that从句：It's splendid that you passed yourexam.你通过考试了，真棒。
(3)It be+动词的过去分词+主语从句：It's said that he has been there many times.据说他去过那儿很多次。
(4)It+不及物动词+that 从句：It is suggested (requested, proposed, desired, etc.) that…。
1.宾语从句，是名词性从句的一种。
在主从复合句中充当宾语，位于及物动词、介词或复合谓语之后的从句称为宾语从句。
宾语从句分为三类：动词的宾语从句，介词的宾语从句和形容词的宾语从句。
2.宾语从句的引导词有三种：(1)以that引导的宾语从句：that引导的宾语从句一般都是由陈述句充当，引导词that没有实际意义，不在从句中作任何成分，that可以省略，而且从句成分齐全，句意完整。
高中英语知识点归纳名词性从句
高中英语知识点归纳名词性从句名词性从句是英语中的一个重要语法知识点，它在句子中起着名词的作用。
名词性从句一般由连接词引导，可以作主语、表语、宾语、同位语等。
它的运用能够使句子更加丰富多样，增加表达的灵活性。
本文将对名词性从句的几种常见情况进行归纳总结。
一、名词性从句作主语名词性从句可以作为句子的主语，它承担了动词的逻辑主语的地位。
常用的连接词有：that, whether, if等。
1. 引导词为that的情况：例如：That he didn't come as he had promised was disappointing.翻译：他没有按照承诺的那样来，真令人失望。
2. 引导词为whether/if的情况：例如：Whether he will come or not remains unknown.翻译：他是否会来还是个未知数。
二、名词性从句作表语名词性从句可以作为句子的表语，表达主语的性质、特点、状态等。
常用的连接词有：that, whether, what等。
例如：It is unclear whether he is telling the truth or not.翻译：他是否在说真话还不清楚。
三、名词性从句作宾语名词性从句可以作为句子的宾语，接在及物动词、介词后面。
常用的连接词有：that, whether, if, what, who, whom, which, whose等。
1. 当宾语从句是及物动词的宾语时，常用连接词是that。
例如：He said that he would come tomorrow.翻译：他说他明天会来。
2. 当宾语从句是介词的宾语时，常用连接词是whether/if, 当介词为介词to时，连接词也可以用为不定式to。
例如：She is not sure about whether/if he will join us.翻译：她不确定他是否会加入我们。
初中英语知识点归纳名词性从句
初中英语知识点归纳名词性从句名词性从句是英语语法中的一个重要概念，它在句子中起名词的作用。
在初中英语学习过程中，了解和掌握名词性从句的知识对于理解句子的结构和表达意思非常重要。
本文将对初中英语知识点归纳名词性从句进行探讨和总结。
一、名词性从句的定义和分类名词性从句是一个从句，在句中担任名词的成分。
它可以作主语、宾语、表语、同位语等。
根据名词性从句的引导词不同，可以分为以下四种类型：1. 由连词that引导的名词性从句。
2. 由疑问词引导的名词性从句，如：who、what、when、where、why等。
3. 由连接副词引导的名词性从句，如：how、whether等。
4. 由连接代词引导的名词性从句，如：whoever、whatever、whenever、wherever等。
二、名词性从句作主语名词性从句作主语时，可以用that引导，也可以用连接词what、whether、if来引导。
例如：1. Whether we can go camping depends on the weather. （是否我们能够去露营取决于天气。
）2. What she said is true. （她所说的是真的。
）3. That he is guilty is beyond doubt. （他有罪是毫无疑问的。
）三、名词性从句作宾语名词性从句常常作及物动词或介词的宾语。
例如：1. I know that you are busy. （我知道你很忙。
）2. He asked me what I wanted. （他问我想要什么。
）四、名词性从句作表语名词性从句作表语时，用that引导。
例如：1. The problem is that we don't have enough time. （问题是我们没有足够的时间。
）2. The fact is that he is leaving tomorrow. （事实是他明天要离开。
名词性从句英语语法知识点汇总
名词性从句英语语法知识点汇总名词性从句是在句子中起名词作用的句子。
名词性从句的功能相当于名词词组，它在复合句中能担任主语、宾语、表语、同位语、介词宾语等。
下面就是小编给大家带来的名词性从句英语语法知识点汇总，希望大家喜欢！引导名词性从句的连接词可分为三类：连接词：that,whether,if 不充当从句的任何成分)连接代词：what, whatever, who, whoever, whom,whose, which.连接副词：when, where, how, why不可省略的连词：1. 介词后的连词2. 引导主语从句和同位语从句的连词不可省略。
That she was chosen made us very happy.We heard the news that our team had won.比较：whether 与 if 均为"是否"的意思。
但在下列情况下，whether 不能被 if 取代：1. whether 引导主语从句并在句首2. 引导表语从句3. whether 从句作介词宾语4. 从句后有"or not"Whether he will come is not clear.大部分连接词引导的主语从句都可以置于句末，用 it 充当形式主语。
It is not important who will go.It is still unknown which team will win the match.1)由从属连词 that 引导的从句叫做名词性 that-从句。
That 只起连接主句和从句的作用，在从句中不担任任何成分，本身也没有词义。
名词性 that- 从句在句中能充当主语、宾语、表语、同位语和形容词宾语，例如：主语：That he is still alive is sheer luck. 他还活着全靠运气。
宾语：John said that he was leaving for London on Wednesday. 约翰说他星期三要到伦敦去。
高中英语名词性从句详解
名词性从句—高中英语语法（1)表语从句ﻫ1. 定义：用作表语的从句叫做表语从句ﻫ2. 构成:关联词+简单句３．引导表语从句的关联词的种类：ﻫ（1）从属连词thaｔ。
如：ﻫThe ｔｒouble is thａt I haｖe loｓt hｉｓaddreｓs. 麻烦是我把他的地址丢了。
ﻫ(2）从属连词ｗhetheｒ, as, as if。
如:ﻫＨe ｌookｅd just as he had lookeｄｔen years befoｒe. 他看起来还与十年前一样。
ﻫＴhe questｉon is wheｔher thｅy wｉｌl ｂｅaｂle ｔｏhelｐｕs. 问题是他们是否能帮我们。
注:从属连词iｆ一般不用来引导表语从句，但as iｆ却可引导表语从句，如：All this waｓoveｒtｗenｔy yｅars ago, but it's aｓif it was onｌy ｙｅｓｔｅrdａｙ．ﻫ这都是２0多年前的事了，但宛如昨天一样。
ﻫ能跟表语从句的谓语动词一般为系动词ｂe, seeｍ，ｌook等。
如:Iｔlｏoｋed ａsｉf it ｗａs going to rain.看起来天要下雨了。
(3)连接代词who, ｗhoｍ, ｗhｏsｅ, what,which,whoｅｖer, wｈaｔeveｒ, ｗhichever连接副词where，ｗheｎ，how,ｗhy。
如：Ｔhｅprｏbｌeｍis who wｅcａn gｅt tｏｒepｌａce hｅr.问题是我们能找到谁去替换她呢。
Ｔhe quesｔion is hｏw hｅｄｉd it. 问题是他是如何做此事的。
ﻫThat wａｓwhat she dｉｄthis mornｉng on ｒeacｈinｇｔhe atｔic. 那就是她今晨上了阁楼干的。
解释:ﻫ１. 连词ｂecａuse可引导表语从句。
如:Ｉthiｎｋit is bｅcaｕｓe you arｅdoing too muｃh. 我想这是因为你做得太多。
名词性从句知识点总结
名词性从句知识点总结名词性从句是指在一个句子中扮演名词的角色，作为主语、宾语、表语等成分的从句。
在英语语法中，名词性从句是一个重要的语法结构，掌握好名词性从句的知识点对于提高英语语言水平和理解复杂句子非常有帮助。
本文将对名词性从句的几个主要知识点进行总结。
1. 定义和特点名词性从句是一种从句类型，它在句子中充当名词的角色，可以作为主语、宾语、表语等。
名词性从句通常由连接词引导，如that、whether、if、who、whom、whose、which等。
2. 主语从句主语从句在句子中作为主语，常用连接词that引导。
例如：That heis late is a common problem.（他迟到是个常见问题。
）3. 宾语从句宾语从句在句子中作为动词的宾语，通常由连接词that、whether、if引导。
例如：She asked me if I could help her.（她问我是否能帮她。
）4. 表语从句表语从句在句子中作为表语，常用连接词that引导。
例如：The important thing is that you are safe.（重要的是你安全。
）5. 同位语从句同位语从句在句子中作为对某个名词或代词的解释或说明，通常由连接词that引导。
例如：The fact that she passed the exam is a relief.（她通过考试的事实令人松了一口气。
）6. 后置定语从句后置定语从句在句子中作为对名词或代词的修饰，通常由关系代词引导。
例如：The book that she recommended is very interesting.（她推荐的那本书非常有趣。
）7. 时间状语从句时间状语从句在句子中作为一个时间状语来修饰动词，常用连接词when、while、as、before、after等引导。
例如：He arrived home before it got dark.（在天黑之前他回到了家。
高中英语语法——名词性从句_2
表语 同位语
名词性从句的定义及种类 1. 定义: 在句子中起名词作用的各种从句，统称为名词性从句。 2. 种类: 根据它们在句中所充当的句子成分，可以分为主语从 句、宾语从句、表语从句和同位语从句。
请判断以下哪几句为名词性从句
1.Whether we will go for an outing tomorrow remains unknown. 主语从句 2.The question is when he can arrive at the hotel. 表语从句 3.It was Mary that helped me solve the problem. 强调句 4.Whoever breaks the law will be punished. 主语从句
1. 从属连词: that, if, whether
that: 无词义、不充当从句中的成分，引导第一个宾语从句可省略。 if: 表是否，不充当从句中的成分，引导宾语从句，不可省略。 whether: 表是否，不充当从句中的成分，引导名词性从句，不可省略。
1.__T_h__a_t __we will realize our dreams in the future is certain. 2.The fact is __t_h_a_t_ the Earth goes around the Sun. 3.__W__h_e_t_h_e_rshe will come back on time depends on weather. 4.I asked him __i_f/__w_h_e_t_h_e_r he could do me a favor. 5.Could you tell me the question _w__h_e_t_h_e_r English is useful for us now? 6.Word came ___t_h_a_t_ his son was admitted to Beijing University. 7.The christian Church rejected his theory, saying ___(_th_a_t_)__ it was against God's idea and ___t_h_a_t_ people who supported it would be attacked.
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名词性从句知识归纳名词性从句是指在句子中相当于名词的从句，主要包括主语从句、宾语从句、表语从句和同位语从句。
名词性从句不是修饰性从句，而是复合句中的主干。
e.g. That the boy failed again in the exam disappointed his mother. （主语从句）I know that he is writing his composition in his room. （宾语从句）The question is how we can finish it on time. （表语从句）The fact that some Chinese are still poor is really a great problem. （同位语从句）一、宾语从句---及物动词、介词、部分形容词（certain, sure, glad, afraid, frightened, happy, pleased, sad, sorry, surprised, upset, satisfied等）后e.g. I believe (that) he is honest. (that不充当从句内的任何成分，一般情况可省略)I’m glad that you are satisfied with your job. (that不充当从句内的任何成分) He doesn’t care if/whether it isn’t a fine day. (if/whether不充当从句内的任何成分)Please tell me what you want. (what充当从句内的宾语)She always thinks of how she can work well. (how充当从句内的状语)I don’t believe whatever he said.(whatever充当从句内的宾语，意为“任何事”)I’ll take whoever wants to go. (whoever从当从句内的主语，意为“任何人”)【宾语从句要点拓展】1. that引导宾语从句时一般可以省略，若由and或or连接两个宾语从句时，第一个从句中的that可以省略，而第二个分句前的that不可省略。
e.g. He told me (that) they could not decide what to do and that they asked my advice.2. whether和if引导宾语从句一般可以互换使用，但以下情况只能使用whether(1) whether可与or not连用 e.g. I want to know whether he will see the film or not.(2) 介词宾语从句要用whether e.g. I don’t care about whether you have money or not.(3) that引导的宾语从句只能放于in, except, besides和but四个介词后e.g.The Swede stood still, except that his lips moved slightly.3. 转移否定---当主句是I/ We think (believe, consider, expect, suppose, guess, imagine) 时，其后的宾语从句如果是否定形式，常把从句中的否定词not转移到主句中。
e.g. I don’t suppose (that) it is his fault, is it?4.时态问题---宾语从句的时态常受到主句时态影响，若主句是现在时或将来时，从句可用任何所需要的时态；若主句是过去时态，从句一般用过去的某种形式，如：一般过去时，过去进行时，过去将来时等；当从句表示的是客观真理，科学原理，自然现象，则从句仍用一般现在时态。
e.g. I know(that) he didn’t tell you what he would come then.We believed that he had earned enough money to build a house.The teacher told us that Tom had left us for America.The teacher told us that the sun rises in the east.5. 一种特殊类型的宾语从句---在这种句子里do you think等意为插入语，但实为主句，因此余下部分应用陈述语序余下部分?e.g. Where do you guess our art festival is to be held?Who do you think the public might choose as their favorite singer this year?二、主语从句---位于句首，常用it做形式主语e.g. That he will come and help you is certain. (that不充当从句内的任何成分，不可省略)Whether there is life on the moon is an interesting question. (whether不充当从句内的任何成分，不能用if)What he wants to tell us is not clear. (what充当从句内的宾语)Who will win the match is still unknown. (who充当从句内的主语)Where the English evening will be held has not yet been announced. (where 充当从句内的状语)Whatever he said was right. (whatever充当从句内的宾语)It is known to us how he became a writer. (it为形式主语，代替how引导的主语从句)【主语从句要点拓展】1. it做形式主语的结构(1) It’s a pity/ a shame/ an honor/ a fact/ no wonder/ common sense/ good news that… 遗憾的是（荣耀的是、事实是、难怪是、常识是，好消息是……）e.g. It is a pity that you didn’t attend the lecture yesterday.(2) It’s clear/ right/ true/ certain/ necessary/ (un) likely/ important/ (im) possible/ obvious/ remarkable that… ……很清楚（正确，必要，重要，可能，值得注意等)e.g. It is likely that there will be a snowstorm tomorrow.(3) It is well-know n/ reported/ recorded/ estimated/ said/ believed that…众所周知（据报道，据记载，据估计，据说，据人们相信)…e.g. It is said that his father left him nothing.(4)It turns out/ seems/ appears/ happens/ matters…) that…结果是……（似乎是, 碰巧是, 重要的是……）e.g. It happened (to me) that I had been away when he called.2. it做形式主语与it is(was)… that…强调句式的区分e.g. It is a pity that you didn’t go to see the film.It is in the morning that the murder took place.解题方法：将it is/was… that 去掉，看余下部分是否完整，若完整即为强调句式；反之为it作形式主语。
三、表语从句---系动词后（常见系动词：be, look, remain, seem, appear等）e.g. The problem is that they can’t get here early enough.The question is whether we can reduce the cost of the product.It looks as if it’s going to rain.The question is who (which of you) will be the next speaker.What he wants to get is whatever you have.This is where our problem lies.That is why he didn’t come to the meeting.四、同位语从句---抽象名词后（从句对抽象名词进行补充说明或解释说明抽象名词的内容）e.g. The news that he had landed on the moon spread all over the world.The thought came to him that Mary had probably fallen ill.He must answer the question whether he agrees to it or not.I have no idea when he will come back home.名词性从句高考趋势与考察重点一、语序问题---名词性从句内部一律使用陈述语序注意以下句子：e.g. I don’t know what is the matter with him.I have no idea what was the matter with him.Could you tell us what was wrong/ the trouble with him yesterday?二、从句中的虚拟语气问题1. 主语从句：(1) It is important/ natural/ necessary/ essential/ strange/ that …(should) do…(2) It is suggested/ advised/ deman ded/ ordered/ requested that … (should) do…e.g. It is important that every student (should) learn a foreign language.It is suggested that students (should) check their answers before handing in the paper.2. 宾语从句：在表示“命令、要求、建议、决定”等意义的动词后的宾语从句常用“（should）+ do”【insist（坚持），order, urge, command（命令），require, request, demand（要求），advise, suggest, propose, recommend（建议）】e.g. The commander ordered that troops (should) set off at once.The doctor suggested that he (should) give up smoking.3. 表语从句：当主句的主语为order, command, requirement, request, demand, advice, suggestion, proposal, recommendation等名词时，表语从句的谓语动词用“ (should) do”的形式。